X-ray screen or shield.



O. H. MYERS.

X-RAY SCREEN 0E SHIELD. APPLICATION FILED 001". 16, 1905.

Patented July 26, 1910.

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0. H. MYERS.

X-RAY SCREEN 0R SHIELD.

APPLICATION FILED 0OT.16, 1905.

965,533. Patented July 26, 1910.

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CHARLES HENRY MYERS, OF BUFFALO, NEW YORK.

' X-RAY SCREEN OR SHIELD.

- Specification of Letters Patent. Patented July 26, 191i). Application filed October 16, 1905. SerialNo. 282,993.

To all whom it may concern:

Be it known that I, CHARLES HENRY MYERS, a citizen of the United States, residing at Buffalo, in the county of Erie and State of New York, have invented a new and useful X-Ray Screen or Shield, of which the following is a specification.

In the treatment of diseases with X-rays, it is the customary practice to expose the diseased tissues to the rays and to shield and protect the surrounding healthy tissues by coatings of putty, sheets of lead, and the like, applied directly tothe person, and

having openings through which the diseased parts are exposed. It has also been found physicians or oper X-rays are employed and examinations, because ators hands when the for diagnosin of the deleterious effects of the continuous exposure of the hands to the rays.

The primary object of the present invention is to provide means which will eliminate the necessity of the application of shielding material directly to the body of the person, said means protecting both the patient aid the operator from the deleterious effects of X -rays, and said means, furthermore, being readily and properly adjustable to different conditions of use.

A further object is .to provide a structure being transmitted from the apparatus to the patient will be eliminated. 1

The preferrd embodiment of the invention is illustrated in the accompanying drawings, wherein: Y Figure 1 is a side elevation of the apparatus.

ig. 2 is a sectional view therethrough on the line 2-2 of Fig. 1. Fig. 3 is a vertical sectional view through one of the shields taken on the line 33 of Fig. 2. Fig. 4 is a sectional view on the line 4-4 of Fig. 1. Fig. 5 is a horizontal sectional view on 2. Fig. 6 is a detail vertical sectional view on the line 6-6 of Fig. 1. Fig. 7 is a front elevation of the v front shield. Fig. 8 are views in elevation responding parts in all the figures of the drawings.

In the embodiment illustrated, an extensible standard is employed, comprising a base 10, carrying a tubular section 11, in

Y which is slidably mounted overlap the collar 30, of

a rod section 12, that can be held in different positions by means of a set screw, 13. The upper end of the extensible standard is provided With'a pair of relatively rotatable members 14 and 15, the former of which forms a part of the upper end of the standard, the other, namely, 15, consisting of a disk having agroove or slot 16, in its outer side. A supporting arm or rod 17 is slidably engaged in the groove or slot, and an 'eyebolt. 18, surrounding the supporting arm or rod, is provided with a threaded shank 19, passing through the members 14 and 15. A levernut 20, threaded upon the shank, serves to draw the bolt and thereby the arm and the members into clamping relation to hold said arm against its sliding movement and the members against relative rotation. By this arrangement, the arm is capable of longitudinal, rotary and angular adjustment, and it is also movable vertically upon the standard.

One end of the supporting arm or rod 17 carries an enlargement in the form of an eye 21, and rotatably associated therewith is another eye 22, formed upon the lower .end of a stem 23, that is secured. to-an insulating arm or... block 24'," which arm or block is of wood. The eyes 21 and 22 are normally held against relative rotation by means of a clamping bolt 25, having a han-. dle 26 at one end, said bolt passing through the eye 22, and being threaded in the eye 21, as shown iii Fig. 5. The block 24: is secured to a shield consisting of a substantially conical body 27, lined with sheet metal, such as lead 28,that is impervious to the passage of the X-rays. This shield has a central opening 29, surrounded by a projecting collar 30, forming a passageway for the X- rays, as hereinafter described. A' series of caps are employed in connection with the shield, two of said caps being illustrated in Fig. 8. These caps consist of face plates 31, carrying annular flanges 32, adapted to the shield, said collar being provided with suitable projections 33, and the flanges having ridges 31 that engage thereover. The face plates 31 of the caps are lined with suitable material 35, that is impervious to the X-rays, and

the face plates, moreover, are provided with openings 36, the openings of the different caps beingi pf different diameters, as clearly shown in g. 8.

Cooperating with the shield above dezontally upon and rotatable about the arm' scribed, is another shield 37 preferably concavo-convex in form and mounted on a frame or support which is movable hori- 17 said frame or support comprising, in the present instance, an ear 38 on the shield 37,

? pivotally connected by a clamp bolt 39, to another ear 40, said ear 40 including a pair of clamping arms 41, that embrace the sup- .porting arm or red 17, and can be frictionthe part to be treated. If the shape of such part is irregular, a piece of foil is cut with an opening of the proper shape and is fitted upon one of the caps. The shield is then placed substantially against the patient with the diseased part exposed through the opening, the various adjustable features of the support permitting substantially any desired arrangement of the shield, without regard as to whether the patient is seated or is located in a recumbent position. The generator 43 is preferably entirely independent of the shield 27, and may be adjusted with the shield 37, which constitutes a holder for the generator, so that the proper application of the rays to the part treated can be secured, and in any case, it will be observed that the tube can be disposed in spaced relation to the shield in order to avoid the transmission of electrical shocks through said shield to the patient. The shield 37 is adjusted to the tube or generator so as to protect the operator or physician. The relative and independent ad justment of the shields is thus im ortant.

In case of examinations, the s ield disclosed in Fig. 9 may be substituted for the shield illustrated in Figs. 1, 3 and 4, said shield consisting of a conical body 27, having an opening 28*, of comparatively lar e diameter. This shield is mounted on tide supporting arm 17 in place of the shield27 and by the same means as disclosed for said shield 27. A further description of this slight modification is believed to be unnecessary. i

From the foregoing it is thought that the construction, operation, and many advantages of the herein described invention will be apparent to those skilled in the art, without further description, and it will be understood that varlous changes 'in the size, shape, proportion, and minor details 0f construction may be resorted to without departing from the s irit or sacrificing any of the advantages 0 the invention.

Havmg thus described my invention what I claim as new and desire to secure by Letters Patent, is:

1. In an apparatus of the class described, thecombination of a standard having a rotatable and vertically adjustable section, a

clamp for holding the section in fixed position, an arm, means for adjustably connecting the arm with the adjustable section of the standard, a pair of shields relatively slidable back and forth on the arm, and an X-ray generator arranged between the shields, said means'comprising a clamping bolt, and a member cooperating therewith for holding the arm in fixed position, said bolt serving when loosened as a pivot on which the arm swings and also permitting the arm to be adjusted longitudinally and turned about'its axis.

2. In apparatus of the class described, ,the combination with a support, of spaced independent shields comprising walls mounted on the support and relatively adjustable upon the support toward and from each other, said walls bein impervious to X- rays, one of the walls eing provided with an X-ray passageway, the other being imperforate, and an X-ray generator located between said adjustable walls and adjustable with the imperforate shield to change the distance between the generator and the part of the patient exposed through the said passageway.

3. In an apparatus of-th'e class described, the combination of a supporting arm, a mounting in which the arm is rotatably and longitudinallyadjustable and in which the Y mentioned support to theextremity of the arm and constituting a pivot for the support.

4. In apparatus of the class described, the combination with a support, of shields separately and adjustably mounted on the support, an X-ray generator located between the shields, one of said shields having an X-ray passageway therethrough, the other being entirely imperforate and impervious to the passage'of X-rays, said generator being adjustable with the imperforaie lshield to changethe distance between the g and part of the patient exposed through the erator l' posing device or the passageway for varylng the cross-sectional area of the active X-rays, said device having an opening and provided with a lining surrounding the opening and consisting of material impervious to X-rays.

5. In apparatus of the class described, the combination with a supporting arm mounted for rotary, pivotal and longitudinal adjustment, of a shield comprising a" wall impervious to X-rays and pivotally mounted on the arm, said wall having an X-ray passageway therethrough, means for holding the shield against its pivotal movement and in different positions with respect to the arm,

and another shield slidably and pivotally mounted on the arm and comprising an imperforate wall wholl impervious to X-rays.

6. In apparatus 0 the class described, the combination with a supporting standard ro tatably and verticallyadjustable, of rotatably associated members, one of which is carried bythe standard, a supporting arm rotatably and slidably mounted on the other member, clamping means for holding the members against their-relative rotation and the arm against its sliding movement, said means serving, when loosened, as a pivot on which the arm swings, and an X-ray screen carried by the arm.

7. In apparatus of the class described, the combination with a supporting standard, of relatively rotatable members carried by the standard, a supporting arm slidably mounted on one of the members, an eyebolt engaging the arm to normally hold the same' against sliding movement, said bolt passing through the members to hold them against relative rotation, and an X-ray screen carried by the arm. U

8. In apparatus of the class described, the combination with an extensible standard comprising slidably associated sections, of means for holding the same. against their slidin movement, an arm rotatably and slidaby associated with the standard, a screen pivotally mounted on the arm and having an opening and a collar surrounding the same, caps arranged to be placed upon the collar and havinglopenings of different sizes therethroug and another screen slidably and pivotally mounted on the arm and movable toward and from the first mentioned screen.

9. As an article of manufacture, an X- ray screen consisting of a hollow frustoconical structure provided with a central opening, a lining within the structure consisting of material impervious to X-rays, an outwardly-extending collar surrounding the opening, a detachable cap having an exposing opening, a lining surrounding the opening consisting of material impervious to X-rays, and means for detachably securing the cap over the outer end of the collar.

10. Inapparatus of the class described, the combination with a supporting arm, of spaced shields mounted on the arm and relatively adjustable thereon toward and from each other, one of said shields having a convexed and a concaved side, the other being substantially conical in form and having a central opening, the inset sides of the shield being located in opposing relation to receive an X-ray generator between them, a collar fixed on the shield having the opening and extending axially from the outer face of the shield to form an X-ray passageway, a detachable cap fitted on the collar and provided with an opening, and a lining on the cap surrounding the opening and consisting ofmaterial impervious to X-rays.

11. A device of the class described, comprising a standard, an arm movable vertically upon the standard, a frame movable horizontally upon and rotatively about the arm, a tube holder and means for moving the same in an are at right angles to the plane of rotation of the frame.

In testimony, that I claim the foregoing as my own, I have hereto aflixed my signature in the presence of two witnesses.

CHARLES HENRY MYERS. 

